Pipe connection



June 16, 1931. R. a. MoRsE Erm. 1,810,434

PIPE CONNECTION Filed llarh 18, 1930 BY ATTORNEY.

20 property is developed thebranch line seldom 30 may easily and quicklybe made in the main PatenteclJune. l, ,195i

UNITED ySTAT-Es Arana asics ROBERT B. `1VIORSE,` OFy HYATTSVILLE, .ANDHOXVj-BBD-R. DEVILBSS, OF RIVERDALE,

:MARYLAND PIPE CONNEVTIN i Application filed March 18, 1930. ,SerialYNo. 435,765.

This' invention `relates generally to pipe taken through a. portion of aunion member connections, and particularly to improve, involving aslight modification, and Y ments in provisions for connecting branches Fig. 5 is au enlarged fragmentary section to sew-er pipes. taken throughone side of the inner end of the `t5 In providing for branch pipe'lines, when neck member. r;

it'is denitely determined where the branch .The device of our inventionis shownand line willberequired, it is the general practice described inconnection with sewer pipe of to-place in the main sewer line a pipehaving clay, terra cotta, or concrete, but it will be a branch -orbranches disposed perpendicular understood, vof course, that, withpossible to the main pipe'orat anotherdesred angle minormodiiications,it may equally as satis- 6o and to which the Abranch is connected. Inactorily be employed with pipes made of instances, however, where mainsewer lines iron Or other material. f are laid vthrough unimprovedorundeveloped In carryingout the invention, the main property,itisusually impossible to determine pipe 5 will have an opening or holecutthere- 15 with any degreeof accuracy where a. .branch in at the pointand at the proper angle where 65 line will be required, and thereforeit, is im! 1t is desired the branch shall connect. These practicalandfhighly expensive to install pipe Openings may be readily cut bymethods and sections having branches associated there- Wlth instrumentsWell-known to thosey fawith for the reason that when the adjacent miliaiwith such work. c

Theopening will be of a size to properly 70 coincides with such' pipesection; Moreover, accommodate theinner end of a union memit is oftenrequired 'that branches be conber indicated generally at 6. This unionnected to the main lineat places where no such member includes a neck 7and a bellportion branch pipe connectionoccurs, and it is neces- 8; theneck having an internal diameter corsary, therefore, that the branchAline `be responding substantially with the internal 75l tapped in7 tothe main line. diameter of thebranch pipe, while the bell 8 It is .theprimary object of the present in receives the end of the branch pipewith suf-` vention to provide means of simplified and iicient clearancefor calking or sealing operimproved nature whereby branch connectionsations. f n

In making the opening or hole in the main s0 line wherever desired, andin such manner pipe 5, it is preferred that the edges thereof that astrong and tight joint is assured. This n be `inclined or beveled asindicated at 9 of the object is accomplishedby means of aspecialdrawings, in-rder to permit of the introducly constructed unionmember associated with tion of a packing or sealingsubstance ormathemain and branchfpipesin a manner hereterial suchas ute, indicated at 10,to prevent 85 'after fully set fort-h and described. cement, dirt orother foreign matter drop- In the drawings: ping or .protruding throughinto the main Fig. l is `a fragmentaryy sectional view pipe.' The outerperiphery of the neck 7 is taken longitudinallyv through a section ofprovided with a projection, bead or flange 1l, sewer pipe andillustrating the application which partly if not entirely closes thespace 9G thereto Vof a union member constructed and between the innerend .ofthe neck and ther assembled in accordance with the invention,'opening in the main pipe 5.; This projectionr Fig. 2 is a. view takentransversely through .or bead forms an abutmentlagainst which the asection of main sewer pipe and showing asjute or other sealing materialengages when u scciated therewith the improved union mempressed into theopening in the pipe, and preber; the said union member providinghorivents the 'packing material passing into main Zontal connection withthe main sewer line, pipe.v

Fig. 3 is a bottom plan view of theini- In making connectionsv of thischaracter, proved union member, Y for reasons welkknownto those familiarwith Fig. 4 'is a fragmentary sectional view such work, it is essentialthat there be no proi9? tuberances upon the interior of the main pipeand that no part of the coupling or union project into the main pipe. Tothis end, the union member is provided with stops 12 so arranged as toengage with the outer surface of thepipe 5 when the inner end of theneck 7 thereof has reachedI the inner periphery of the said pipe 5. Thestops in the present instance ta e the form of webs 12 disposedpreferably at diametrically opposite'points upon the neck 7 andpreferably formed integral with the said union member. The inner ends ofthe stop members are spaced from the' cor-V responding end of the neck 7a distance substantially equal to the thickness of the Wall of the pipe5, whereby to insureaf proper fitting of the neck 7 within kthe pipeopening and without possibility of the neck projecting intothe mainpipe.

When the union member has been properly applied-to the opening and heldin proper position therein, jutey or other packingor sealing material1() is inserted between the edges-of the opening and the neck and may bepressed firmly in this space andl against the shoulder or bead 11 ot theneck, whereupon cement or other material 13 is then packed around theIpipe and also around the union member and firmly between the shoulder ofthe bell 8' and the main pipe 5; When this cement has hardened, theunion member will beI firmly sealed and held: rigidly wthl the main pipeand in such manner that leakage at the joint will be prevented. Thebranch pipe may then' be fitted to the bell 8 andl packed in the usualmanner, whereupon the connection' is complete.

1n' this description', the shoulder at the inn'er end of the neck 7 hasbeen referredto as a" beadV 11, but it is obvious that variations inthis structure maybe made. For instance, the inner extremity of the neckmay be flared outwardly as indicated at 14: in Fig. 4, or,

the bead or flared portion may take the'form of yseveral projectionsarranged in( spaced order around the periphery of the neck.

Itis preferred that the union member 6 be formed of cast metal', butother Lmaterials mi ght be employed in the' construction of this memberas desired. The stops 12 have been shown and described as webs arrangedat diametrically opposite points upon theI union y member,` but it willbe understood that these stops may take the form' of spurs or lugsyarranged at any desired point or points around the. exterior of the neck7 In applying the union member, the stops will limit the inward movementof the neck, so that no part of the latter will project into the mainpipe, and the said member will be braced or supported and held at theproper angle by any suitable means until the concrete 13 is applied. Theinvention contemplates that the neck be sufiiciently long to permit ofample space `foi' the application of packing 10 entirely around the neckso as to insure against foreign matter falling or protruding into themain ipe when the plastic cement is applied. It is or this reason thatthe annular shoulder defining the bell 8 is maintained a properdistaneefrom the surface'of-:the pipe `5 by the said stops 12.

Having thus described our invention, we claim:

1. rl`he combination Wit'hamain pipehav ing an opening therein, of aunion member, a neck on said member projecting in said opening, a beadon said neck disposed in close proximity tothe edges of said opening, astop on said member to engage the outer surface of' saidi pipe,.a-ndpacking surrounding said neck andresting'upon said bead.

2.: The combinationV with amain pipe having an opening therein, otaunionr member, a neck on said member projecting into said opening, abead on the exterior ofi said neck at the inner end thereofanddisposedin close proximity to tlieedgesfof said opening, meansremoved from said bead for limiting the inward movement ot said neck,packing surrounding said neck andik resting upon said bead, and a`material initially plastic surrounding and encas-ing said mainf pipe andsaid. neck.

3'. A union member comprising a neck.I a beadfon the exteriorsurface otsaid neck at the innerend thereof'` and stops disposed. atdiametricall-y opposite points on the exterior ofi saidv neck andspaced; outwardly thereon beyond said' bead".

4. A union member comprisingintegrally formedbell and neck j-)ortions` abead ony the exteriorsurface of said neck at the inner end thereof, andwebsprojecting outwardly from said neck at diametrically opposite pointsthereon and beyond1 the extreme edges ot said bead and disposed inwardlyfrom the` inner end of said member.

5. A union member comprising a neck, a projection on the exterior ofsaid neck at the inner end thereof, and positioning stops on said neckspaced apart sufiicient to perm-it the application of packing aroundsaid neck adjacent to said projection.

Inl testimony whereof we hereby afiix our signatures.

ROBERT B. MORSE. HOWARD R. DEVILBISS.

